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Preset-env loads unnecessary polyfills for Android >= 52 #10789

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JLHwung opened this issue Dec 2, 2019 · 1 comment · May be fixed by #10790
Open

Preset-env loads unnecessary polyfills for Android >= 52 #10789

JLHwung opened this issue Dec 2, 2019 · 1 comment · May be fixed by #10790

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@JLHwung
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@JLHwung JLHwung commented Dec 2, 2019

Bug Report

Current Behavior
The following snippet is transpiled

Input Code

class A {};

Expected behavior/code
It is not transpiled on Chrome >= 52, so it should not be transpiled when Android >= 52, which shares the same language features support with Chrome.

Babel Configuration (babel.config.js, .babelrc, package.json#babel, cli command, .eslintrc)

  • Filename: babel.config.js
{
  "presets": ["@babel/env", { "targets": "Android >= 52" }]
}

Environment
REPL

@babel-bot

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@babel-bot babel-bot commented Dec 2, 2019

Hey @JLHwung! We really appreciate you taking the time to report an issue. The collaborators on this project attempt to help as many people as possible, but we're a limited number of volunteers, so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack community that typically always has someone willing to help. You can sign-up here for an invite."

@JLHwung JLHwung linked a pull request that will close this issue Dec 2, 2019
@JLHwung JLHwung added the Has PR label Dec 2, 2019
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